Lubricator.



No. 732,146. PATENTBD JUNE 30, 1903. J. H. WALKER.

LUBRIGATOR.

APPLICATION FILED NOV. 24, 1902.

no MODEL.

lNVENTOf? UNITED STATES Patented Tune 30, 1903.

PATENT OFFICE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 732,146, dated June 30,1903.'

Application filed November 24, 1902. Serial No.132,531. (No model.)

To all whom it may concern:

Be it known that 1, JOHN HENRY WALKER, a citizen of the United States,and a resident of Lexington, in the county of Fayette and State ofKentucky, have made certain new and useful Improvements in Lubricators,of which the following is a specification.

My invention is an improvement in lubricators especially designed foruse on trolleys; and the invention consists in certain novelconstructions and combinations of parts, as"

will be hereinafter described and claimed.

In the drawings, Figure 1 is a side view, and Fig. 2 an elevation,partly in section, of a trolley embodying myinvention. Fig. 3 is across-sectional view on about line 3 3 of Fig. 2. Fig. 4 is a detailView showing the slotted construction at the end of the harpprongs. Fig.5 is a detail perspective view of one of the lubricating-boxes, showingthe lug and pin thereon for entering the slot and opening in theharp-prong; and Fig. 6 is a detail sectional view on about line 6 6 ofFig.

- 1, showing the harp-prong and the lubricating-box with its lug fittedin the slot of said prong.

In carrying out my invention I provide the lubricating devices inconnection with two boxes providing the bearin gs for the opposite endsof the wheel-shaft and support these boxes in the harp-prongs and holdthem from turning by the mechanism which will be more fully describedhereinafter.

The harp A has its prongs B spread apart at their front ends, and theyare provided in their said front or free ends with slots B, throughwhich the lubricating-boxes, with the connecting parts, are inserted inassembling the parts. These lubricating -boxes 0 are provided withbearings for the axle of the trolley-wheel and may be inserted bodily inthe slots B, and when secured by the capnuts, presently described, totheir respective prongs and the opposite cap-nuts are connected by thetie-rod the wheel and the associated parts will be firmly held in theharp, as desired.

The prongs B are provided with the slots B, leading from their edges,and also with the perforations E the slots B receiving the lugs C on thelubricating-boxes G and pins C on such boxes entering the openings B inthe prongs B, as wiil be understood from Figs. 1 and 2.

The wheel D has fixed in its center the tubular axle D, which in the useof the trolley makes contact at its opposite ends with the contact-plugsE, which are in the form of rings, as shown, and are held in closecontact with the ends of the tubular axle D by the means presentlydescribed.

The boxes 0 are provided at their outer ends with the projecting tubulartenons O -which are threaded externally to receive the cap-nuts F andwhose bores are sufficiently large to receive the contact-plugs E, whichfit in said bores, as shown in Fig. 2. At the inner ends of the bores ofthe said tenons the outer cap-section of the box 0 is provided with therabbet or groove F, in which fits the inner section of the box O,whichsection has the tubular central bushing portion 0 held at its outer endin the rabbet F, and the inner face-plate, which fits at its outer edgein a groove 0 in the inner end of the outer tubular portion of the outersection of the box G. I thus make the box 0 with an outer or cap sectionand with an inner section, which latter comprises an inner face-plateand the central tubular portion held to the capsection, the innerface-plate C being fitted at its outer edge to the cap-section andpressed in contact therewith by a few strokes of a hammer or otherwiseto properly unite the parts. The tubular portion 0 has its boregroovedit may be spirally, if preferred-and in the groove 0 so formed Isupply graphite or similar material to insure lubrication of the axle Din case the oil should fail for any reason. This tube 0 has a slot Gformed through it leading to the axle D, and a felt or other absorbentpad H fits in the oil-chamber I within the box 0 and has a tongue Hpassing through the slot G and into contact with the axle D, so the oilcan be supplied by capillary attraction to the axle D. The wick-likeportion H is held in theslot G by means of the pin G, as best shown inFig. 3, so the said wick cannot be displaced. By this means oil suppliedto the chamber I through the opening covered by the cap I can be fedevenly t0 the axle D, as desired.

As shown in Fig. 2, the contact-ring E fits within the bore of thetubular tenon of the lubricating-box, and a short tube or thimble Kbears against the said contact-plug and is pressed firmly thereagainstby the cap-nut F, which is threaded on the tenon 0 up against theharp-prong, as shown in the said Fig. 2, thus securing the box to theharp and also pressing the thimble K firmly against the contact-plug andholding the same in contact with the tubular axle or wheel when theopposite cap-nuts are secured by the tie-rod L. This tie-rod L extendsthrough the tubular axle D and through openings fin the capnuts F andreceives the nuts L, whose heads sit in grooves f at the outer ends ofthe opening f and against gaskets D to prevent the wasting of oil.

The felt wick H not only aids in feeding the oil to the bearing, butprevents the oil from wasting by passing too rapidly to the bearing.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the wheel, the axle projeotingfrom the oppositesides of the wheel, the lubricating-boxes having tubular portionsfitting on the axle and also provided with oilcavities surrounding suchtubular portions, and having the tubular portions provided at theirunder sides with slots or openings, and the lubricating-wickshavingbody-portions fitting in the oil-cavity and other portions fittingin the slots or openings in the tubular portions of thelubricating-boxes, the pins for securing such wicks in such slots andsupports for the lubricating-boxes substantially as set forth.

2. The combination with the wheel and the axle to which the wheel isfixed of the boxing arranged alongside the wheel and having a tubularportion or bushing fitting said axle and an oil-cavity surrounding saidbushing, the bushing being provided with an opening connecting saidcavity with the bearing for the wheel-axle, and the wick having aportion fitted in the oil-cavity and the portion fitted and held in theopening leading to the bearing for the axle, substantially as set forth.

3. The combination of the wheel, the axle fixed to and projecting fromthe wheel and the lubricating-boxes on opposite sides of the Wheel andcomprising each a cup-section and an opposite section having aface-plate anda central tubular portion held to the cup-section andprovided with aslot or opening for the wick, and the wick having a bodyportion fitted in the oil-cavity surrounding the tubular portion of thelubricating-box, and a portion fitted in the slot of such tubesubstantially as set forth.

JOHN HENRY WALKER.

WVitnesses:

MARY ANNA BEAN, WM. 11. KILER.

